Vibrator.



'IL LARSEN.

, Vnslauxrolfh APPLIOATIOI FILED APE. 18,*1908.

Patented Dea 22, 1908.

HAROLD LARSEN, OF SPRINGFIELD, OHIO.

VIBRATOR.

No. oor/,3ra

Specification of Letters Patent.

Patented Dec. 22, 1908.

Application led April 18, 1908. Serial No. 427,907.

To all whom it may concern:

Be it known that I, HAROLD LARsEN, residing at Springfield, in the county of Clark and State of Ohio, have invented certain new and useful Improvements in Vibrators, of which the following is a specification.

My present invention, which relates generally to improvements in that type of meview thereof.

chanical devices designed for treatment in various diseases, by applying vibratory and other action to the muscles and other parts of the body, to increase the circulation, more specifically relates to improvements on that form of vibrator disclosed in my patent dated March 3, 1908, No. 880,801.

Primarily my present invention has for its object to simplify the construction and arrangement of the parts constituting my patented vibrator, whereby the manufacture thereof is rendered more economical, whereby the parts have such correlation that they may be the more readily assembled and actuated.

Another object of my invention is to combine with the train of gears, a two part casing, which has a special arrangement whereby to provide convenient bearings for the gears, and at the same time thoroughly incase the same and render them dirt and dust proof as well as avoiding danger of contact of the said gearing with any part of the body.

In its still more subordinate features, my present invention consists in certain details of construction and peculiar combination of parts, all of which will be hereinafter fully described, specifically ointed out in the appended claims, and ilustrated in the accompanying drawings in which,

Figure 1, is a perspective view of my improved form of vibrator. Fig. 2, is an edge Fig. 3, is a front view thereof one of the casing members being removed. Fig. 4, is a vertical section of the same taken substantially on the line 4 4 in Fig. 3 and Fig. 5, is a view of one of the casing members.

In the practical arrangement of my present form of vibrator, the body portion or casing that also forms the frame for the gearing consists of two opposing half sections of identical construction and designated a/-a and each is in the nature of a shallow concaved elongated member, the concavities of the two being only of aV depth sufficient to inclose the train of intermeshing gearing which in the present case are mounted similar to the gearing disclosed in my patented device so as to rotate in parallel planes with the vibrator presently again referred to.

Each half casing section a has a hub section o. at one end for receiving the hub b of a handle B, which is secured between the two hub sections b b screws @#c as shown, and the upper end o the casing sections a have short solid portions a2, each having a 1ongitudinally extended half screw bore a3, and terminating in a concaved head a4, the said portions a2, a3, and o.4 being relatively such, that in placing the two half casing sections together, the parts 0,2 form a convenient bearing for receiving a clamp screw d that extends transversely through the parts a2, a similar screw df being used at the other end of the casing members, which has solid portions a5a5 to receive the screw d as shown.

When the two casing parts are clamped together the threaded hall sockets form the receiving socket for the screw hub c on the contacting device c which is preferably a smooth ball shaped member, either of polished wood when a hard contacting member is desired or of hollow rubber when a soft contacting member' is preferred.

In my present invention, I prefer to form the contacting member with two faces, one hard and one smooth and 'for this purpose I form the hard contacting member o with a lateral screw socket c3 for receiving the screw shank f that carries a rubber ball f, the connection being such that the ball projects at right angles to the plane of rotation of the vibrator.

By providing, as it were, a duplex contactor, one face of which is projected at right angles from the body portion of the vibrator, the user has the advantage of applying a hard or soft contacting surface without any required readjustment of the parts constituting the appliance, it only eing necessary during the act of apcplying the vibrator to turn the same to one si e.

By reason of arranging the two contacting surfaces as stated, I am enabled to obtain a rolling motion on the lateral contacter or ball as well as soft and smooth vibrations for those portions of the face and body where the hard contacting member is not desirable, and that without adjusting the implement further than turning it from one side to the other as conditions make desirable.

The gearing in my present 'form of vibrator is arranged substantially like that shown in my other patent, except it is more compactly assembled and to that end, I formed each casing section with a longitudinal internal rib a, having at proper intervals flat bearing surfaces or hubs a7, a8, a", and al", each of which has a socket ax for receiving the ends of the several gear shafts as best shown in Fig. 4, by reference to which it will be seen that the vibrator spindle 1, is journaled in the sockets of the upper casing bearings a7 and the said spindle carries a sleeve 1() to which the vibrator 11 is attached to turn therewith, and the said vibrator has the usual segmental -form.

All of the spindles of the gears lie with their axes in the central longitudinal plane of the casing as clearly shown in Fig. 3 and the upper spindle 1 carries a pinion 12 that meshes with a large gear 2 mounted in the spindle 20, that journals in the casing sockets (L8-a8 and which also carries a pinion 21 made fast with gear 2. A third spindle 3 is journaled in the casing sockets a and it carries a large gear 30 and a pinion 31 fast on gear 30. rlhe spindle 3 also has a spacing collar 32, mounted therein and the large gear 30 meshes with pinion 21 as shown. Pinion 31 meshes with a still larger gear 4 that is mounted on the crank shaft Ll() one end of which journals in the socket al in one of the casing sections and in the aperture 10at in the opposing section, which has a short lateral hub 11EL to give bearing for the outer end of the crank shaft, which has a handle as shown. Spindle 40 also carries spacing hubs or collars 42 at each side of the gear 1.

From the foregoing description taken in connection with the accompanying drawings the complete construction, the operation and the advantages of my present invention will be readily understood.

Having thus described my invention, what I claim is 1. A vibrator lof the character described, consisting of a two part casing formed of like half sections; each section having a semi socket at one end and a semi concaved seat at the other end, means for clamping the two sections together, a handle having a hub for engaging the hub end of the casing, a coacting member adapted for seating in the concaved end of the casing and having means for fastening therewith, a rotary shaft having a vibrator arm mounted Within the casing, a train of intermeshing gearing mounted within the casing and including a crank shaft projected beyond the casing, said gearing meshing with the vibrator shaft, all being arranged substantially shown and described.

2. In a vibrating device, a casing consisting of two opposing and like half sections, each consisting of an elongated concaved body, the upper and lower ends of which terminate with solid portions, the upper solid portion being of semi bowl shape, the lower portion terminating in a half hub socket, the two sections having internal journal bearings, a vibrator carrying shaft mounted in one set of opposing bearings, a train of intermeshing gearing that coperates with the vibrator shaft mounted in the other sets of journal bearings, the shaft of one of the gears being extended beyond the casing and having a crank handle, a handle held in the hub ends of the casing, a spherical contacting member held in the other end of the casing and means for clamping the two casing sections together as set forth.

3. In a vibrator of the character described, the combination with a hollow casing, and a crank actuated vibrating mechanism contained Within the casing; of a handle member connected to one end of the casing and projected in the longitudinal plane thereof, a hard spherical contacting member on the other end of the casing and projected forwardly therefrom, and a soft spherical member mounted on the hard contacting member and projected laterally therefrom.

4. In a vibrating device of the character described, the combination with the hollow two part casing, means for joining the two sections, and the crank actuated vibrating mechanism contained within the casing, of a handle clamped between the two casing sections at one end, a hard spherical. contacting member detachably held on the other end of the casing and a soft spherical contacting member detachably connected to the hard contacting members and projected laterally therefrom for the purposes stated] HAROLD LARSEN.

Witnesses H. E. SCHENCK, ALICE A. BRANDON. 

